System and method for transition time interval switching in an uplink multicarrier system

Abstract

A system and method to perform fast transition time interval switching in an uplink multicarrier system. In one embodiment, an apparatus, and related method, is configured to receive a first user equipment power headroom (“UPH”) filtering value for a first uplink carrier from a user equipment, identify a measurement identifier with a first value for the first uplink carrier, and transmit the first UPH filtering value and the measurement identifier with the first value to a radio network controller.

What is claimed is: 
     
       1. A method operable with a radio access node in a communication system having a first uplink carrier and a second uplink carrier, comprising:
 receiving a first user equipment power headroom (UPH) filtering value for said first uplink carrier from a user equipment (UE); 
 identifying a measurement identifier with a first value for said first uplink carrier; 
 transmitting said first UPH filtering value and said measurement identifier with said first value to a radio network controller (RNC); 
 receiving a second UPH filtering value for said second uplink carrier from said user equipment; 
 identifying said measurement identifier with a second value for said second uplink carrier; and 
 transmitting said second UPH filtering value and said measurement identifier with said second value to said radio network controller. 
 
     
     
       2. The method as recited in  claim 1  wherein transmitting said second UPH filtering value and said measurement identifier with said second value is part of a radio link parameter update indication (RL PUI) to said radio network controller. 
     
     
       3. The method as recited in  claim 1  further comprising receiving a transmission time interval switching configuration as a function of said first UPH filtering value and said second UPH filtering value from said radio network controller. 
     
     
       4. The method as recited in  claim 1 , further comprising:
 determining a proposed target transmission time interval switching configuration as a function of said first UPH filtering value; and 
 transmitting said proposed target transmission time interval switching configuration to said radio network controller. 
 
     
     
       5. An apparatus operable in a communication system having a first uplink carrier and a second uplink carrier, comprising:
 processing circuitry, configured to:
 receive a first user equipment power headroom (UPH) filtering value for said first uplink carrier from a user equipment (UE); 
 identify a measurement identifier with a first value for said first uplink carrier; 
 transmit said first UPH filtering value and said measurement identifier with said first value to a radio network controller (RNC); 
 receive a second UPH filtering value for said second uplink carrier from said user equipment; 
 identify said measurement identifier with a second value for said second uplink carrier; and 
 transmit said second UPH filtering value and said measurement identifier with said second value to said radio network controller. 
 
 
     
     
       6. The apparatus as recited in  claim 5  wherein said processing circuitry is configured to transmit said second UPH filtering value and said measurement identifier with said second value as part of a radio link parameter update indication (RL PUI) to said radio network controller. 
     
     
       7. The apparatus as recited in  claim 5  wherein said processing circuitry is configured to receive a transmission time interval switching configuration as a function of said first UPH filtering value and said second UPH filtering value from said radio network controller. 
     
     
       8. The apparatus as recited in  claim 5  wherein said processing circuitry is configured to:
 determine a proposed target transmission time interval switching configuration as a function of said first UPH filtering value; and 
 transmit said proposed target transmission time interval switching configuration to said radio network controller. 
 
     
     
       9. A method operable with a network controller in a communication system having a first uplink carrier and a second uplink carrier, comprising:
 receiving a first user equipment power headroom filtering value and a measurement identifier with a first value for said first uplink carrier from a radio access node; and 
 receiving a second UPH filtering value and said measurement identifier with a second value for said second uplink carrier from said radio access node. 
 
     
     
       10. The method as recited in  claim 9  wherein receiving said second UPH filtering value and said measurement identifier with said second value is part of a radio link parameter update indication (RL PUI) from said radio access node. 
     
     
       11. The method as recited in  claim 9  further comprising determining a transmission time interval switching configuration as a function of said first UPH filtering value and said second UPH filtering value. 
     
     
       12. The method as recited in  claim 9  further comprising determining a transmission time interval switching configuration as a function of said first UPH filtering value. 
     
     
       13. The method as recited in  claim 9  further comprising receiving a proposed target transmission time interval switching configuration as a function of said first UPH filtering value from said radio access node. 
     
     
       14. The method as recited in  claim 13  further comprising determining a transmission time interval switching configuration as a function of said proposed target transmission time interval switching configuration. 
     
     
       15. An apparatus operable in a communication system having a first uplink carrier and a second uplink carrier, comprising processing circuitry configured to:
 receive a first user equipment power headroom (UPH) filtering value and a measurement identifier with a first value for said first uplink carrier from a radio access node; and 
 receive a second UPH filtering value and said measurement identifier with a second value for said second uplink carrier from said radio access node. 
 
     
     
       16. The apparatus as recited in  claim 15  wherein said processing circuitry is configured to receive said second UPH filtering value and said measurement identifier with said second value as part of a radio link parameter update indication (RL PUI) from said radio access node. 
     
     
       17. The apparatus as recited in  claim 15  wherein said processing circuitry is configured to determine a transmission time interval switching configuration as a function of said first UPH filtering value and said second UPH filtering value. 
     
     
       18. The apparatus as recited in  claim 15  wherein said processing circuitry is configured to determine a transmission time interval switching configuration as a function of said first UPH filtering value. 
     
     
       19. The apparatus as recited in  claim 15  wherein said processing circuitry is configured to receive a proposed target transmission time interval switching configuration as a function of said first UPH filtering value from said radio access node. 
     
     
       20. The apparatus as recited in  claim 19  wherein said processing circuitry is configured to determine a transmission time interval switching configuration as a function of said proposed target transmission time interval switching configuration.